CN105330099A - Integrated wastewater treatment device and petrochemical two-level effluent water treatment method - Google Patents
Integrated wastewater treatment device and petrochemical two-level effluent water treatment method Download PDFInfo
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- CN105330099A CN105330099A CN201510708367.3A CN201510708367A CN105330099A CN 105330099 A CN105330099 A CN 105330099A CN 201510708367 A CN201510708367 A CN 201510708367A CN 105330099 A CN105330099 A CN 105330099A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Abstract
The invention discloses an integrated wastewater treatment device. The integrated wastewater treatment device comprises an upward flow type reactor, an ozone reactor (7), a water tank (1) and a Venturi tube (8). The reactor sequentially comprises a denitrification region (3), a catalytic ozonation region (4) and a biological aerated filter (5) from bottom to top. A water inlet (18) is formed in the bottom of the denitrification region (3), and a water outlet (10) is formed in the top of the reactor. A first backflow opening (16) and a second backflow opening (17) are formed in the upper portion of the reactor, and the water inlet (18) is connected with the water tank (1) through a first pipeline (13) and connected with the first backflow opening (16) through a second pipeline (14). The invention further discloses a method for treating petrochemical wastewater through the integrated wastewater treatment device. The good organic matter and total nitrogen removal effect is achieved while the petrochemical wastewater is deeply treated.
Description
Technical field
The present invention relates to field of waste water treatment, particularly relate to a kind of Integral waste water treatment unit and adopt this device to carry out the method for petrochemical industry secondary effluent process.
Background technology
Petrochemical industry chemical industry is the key industry of national economy, is also a high flow rate simultaneously, the industry of high pollution.The discharge water yield of Petrochemical Industry Waste Water is different along with refining of petroleum working depth difference, and the wastewater flow rate that the refinement of crude oil per ton produces is about 2.86 tons; The wastewater flow rate processing petrochemicals per ton generation is 117 tons; The wastewater flow rate processing petro-chemical fiber product per ton generation is 161.8 tons; The wastewater flow rate producing chemical fertilizer products per ton generation is 4.25 tons.2008, China's oil and chemical industry scale above enterprise discharge trade effluent 43.82 hundred million tons, accounted for 20.2% of the above enterprise wastewater quantity discharged of national technical scale, occupy service water discharge first place.In addition, the petrochemical wastewater feature that to have that the waste water water yield is large, pollutant component is complicated, water quality and quantity fluctuates large, environmental pollution is serious.General petrochemical wastewater is carried out a biological disposal upon through Sewage Plant, and water outlet can reach the emission standard (COD≤100mgL in " integrated wastewater discharge standard " (GB8978-1996)
-1).But " petrochemical industry pollutant emission standard " (GB31571-2015) that 2015 issue; be defined in territorial development density higher, environmental bearing capacity start to weaken; or water environment capacity is less, ecological environment frailty; the serious water environment pollution problem of easy generation and need the area of taking special protection measure, the COD maximum directly draining into receiving water body is 50mgL
-1, total nitrogen maximum be 30mgL
-1.So extremely urgent to the advanced treatment of petrochemical wastewater.
BAF is a kind of common microbial film treatment process, has that floor space is little, effluent quality good, sludge output is few, cost is low, and has modular construction, level of automation high.BAF has fully used for reference the mentality of designing of sewage disposal contact oxidation method and feedwater rapid filter, biological degradation and adsorption filtration two kinds for the treatment of processess is incorporated in same unitary reactor.With the particulate filler loaded in filter tank (as haydite, coke, quartz sand, gac etc.) be carrier, aeration is carried out in inside, filter tank, filter material surface is grown large number of biological film, when effluent stream through time, to utilize on filtrate the living microorganism Strong oxdiative Decomposition of appended microbial film middle and high concentration and the less feature of particle diameter of filter medium, give full play to the biological metabolism of microorganism, biofloculation, the physical adsorption of microbial film and filler and retain and in reactor along the classification predation of water (flow) direction food chain, realize the high-efficient cleaning of pollutent except the function completing bio-oxidation and solid-liquid separation in a unitary reactor simultaneously, be widely applied in advanced treatment of wastewater field.But it is not traditional B AF can only remove the organism of readily biodegradable in sewage usually, has effect ammonia nitrogen in sewage being oxidized to nitre nitrogen, good by the removal effect of this technique to the organism of difficult for biological degradation in water and total nitrogen separately.And ozone has strong oxidizing property, the organism that the oxidation operation Cheng Yi of difficult degradation in petrochemical wastewater can be biodegradable, adopts ozone to be combined with BAF, and then effectively compensate for the shortcoming of BAF in the method for reaction column design denitrification zone.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Integral waste water treatment unit and adopts this device to carry out the method for petrochemical industry secondary effluent process.When solving with independent BAF technique advanced treatment of industrial wastewater, the problem that the removal efficiency of hardly degraded organic substance and total nitrogen is not high.From the removal effect strengthening hardly degraded organic substance, improve denitrification effect two aspect that reaction runs, research, invention present method, BAF technique can be made when advanced treatment petrochemical industry secondary effluent to reach the effect of good organism and total nitrogen removal.
A kind of Integral waste water treatment unit, comprises reactor, ozonizer, water tank, Venturi tube; Wherein, hardly degraded organic substance and denitrification effect in petrochemical industry secondary effluent is removed for improving biological aerated filter process, traditional B AF is designed three regions, described reactor comprises denitrification zone, catalytic ozonation district and BAF district from bottom to up successively, the bottom of described denitrification zone is provided with water inlet, and top is provided with water outlet; The first refluxing opening and the second refluxing opening is provided with on the top of described reactor; Described water inlet is connected with described water tank by the first pipeline, is connected with described first refluxing opening by the second pipeline;
Integral waste water treatment unit of the present invention, wherein, described first pipeline is provided with intake pump and the first valve, described second pipeline is provided with the first reflux pump and the second valve, described 3rd pipeline is provided with the second reflux pump and the 3rd valve.
Integral waste water treatment unit of the present invention, wherein, in described denitrification zone, the bottom in described catalytic ozonation district and described BAF district is provided with filtrate supporting layer and material taking mouth, facilitates the replacing of filtrate in reactor, the bottom of described reactor is provided with drain; Facilitate the emptying of waste water in reactor.The volume ratio in described denitrification zone, described catalytic ozonation district and described BAF district is 1:1:4.
Integral waste water treatment unit of the present invention, wherein, the filler in described denitrification zone and described BAF district is volcanics, particle diameter 2-5mm; The filler in described catalytic ozonation district is carrying transition metal oxide compound, particle diameter 2-5mm; The media-filling rate in described denitrification zone and described catalytic ozonation district is 85%, and the media-filling rate in described BAF district is 80%.
Integral waste water treatment unit of the present invention, wherein, described carrying transition metal oxide compound is Al
2o
3or the solid catalysis filler of CuO.
Because volcanics is cheap, and there is flourishing pore texture, hole size is uneven, light weight, due to surface irregularity big and small between hole, specific surface area is large, has inertia, anticorrosive to send out biological chemistry reaction in the environment at participation microbial film relatively stable, its surface hydrophilic is strong, rough porous, the microbial film speed of attachment is measured many, with positive charge soon, be conducive to biofilm development, the good carrier of microbial film, to fixed microorganism element, any inhibiting effect, do not affect microbic activity, the implantation that can be microorganism provides good condition; Catalyzed oxidation filler in catalytic ozonation district can make ozone fully mix with petrochemical industry secondary effluent to contact, and strengthens the oxidation effectiveness of ozone, improves the utilization ratio of ozone.
Adopt Integral waste water treatment unit of the present invention to carry out the method for petrochemical industry secondary effluent process, it comprises the steps:
Waste water in water tank enters into reactor by intake pump, successively by denitrification zone, catalytic ozonation district and BAF district, flow out from water outlet, simultaneously, there are two reflux lines, article one, realize backflow by the first refluxing opening, the first reflux pump and the second pipeline, Article 2 arrives Venturi tube by the second refluxing opening, the second reflux pump and the 3rd pipeline, enter the bottom in described catalytic ozonation district after the ozone that backflow waste water produces with ozonizer in described Venturi tube mixes, realize backflow.
Method of wastewater treatment of the present invention, wherein, at handled petrochemical industry secondary effluent COD lower than 100mg/L, when TN is lower than 30mg/L, the quantity of reflux in described catalytic ozonation district is 100%-200%, the quantity of reflux of described denitrification zone is 100%, and the residence time of described reactor is 3h, and the throwing amount of ozone is at 10mg/L.
Integral waste water treatment unit difference from prior art of the present invention is: Integral waste water treatment unit of the present invention and the method tool adopting this device to carry out the process of petrochemical industry secondary effluent have the following advantages:
1) denitrification zone and catalytic ozonation district are set at reactor, improve the effect of hardly degraded organic substance and total nitrogen in reactor for treatment petrochemical industry secondary effluent, make water outlet more secure.
2) in reactor, be provided with reflux, when improve preoxidation, the duration of contact of ozone and petrochemical industry secondary effluent, improve the utilization ratio of ozone.
3) ozone is with the reaction process of waste water, generates oxygen, for follow-up BAF unit provides aeration, eliminates the device of aeration in traditional B AF process operation process, save running cost.
4) the present invention is combined in traditional denitrification device, ozone-mixing device and BAF device in a reactor, reduces the floor space of reactor, reduces cost of investment.
5) ozone dosage is little, save energy consumption, and middle ozone content of giving vent to anger behind catalytic ozonation district and BAF district is low, without the need to installing ozone destruct device.
Know-why of the present invention is as follows:
Integral waste water treatment unit and petrochemical wastewater process secondary effluent treatment process are by the integral type combination process together with the chemical oxidation of ozone, biological degradation, aerobic nitrification and anaerobic denitrifying four kinds of combine with technique.Petrochemical industry secondary effluent is first through denitrification zone, catalytic ozonation district and BAF district, article one, tributary flows into catalytic ozonation district after being mixed with ozone via Venturi tube by reflux pump again, this tributary make use of the oxygenizement of ozone, the organism that the oxidation operation Cheng Yi of difficult degradation in petrochemical industry secondary effluent is biodegradable, improve the effect of follow-up BAF unit biological degradation hardly degraded organic substance, and ozone with the reaction process of waste water in generate oxygen, for follow-up BAF unit provides for microorganism nitrification oxygen used, thus instead of aerator traditional, save running cost, another tributary, road via reflux pump the return of waste water of BAF unit to denitrification zone, make the nitrate ion in waste water and nitrite ion via the effect of the denitrifying bacteria be attached to above volcanics, produce nitrogen, thus reach the effect removing total nitrogen further.
Below in conjunction with accompanying drawing, Integral waste water treatment unit of the present invention and the method that adopts this device to carry out the process of petrochemical industry secondary effluent are described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of Integral waste water treatment unit of the present invention.
Wherein, 1-water tank, 2-intake pump, 3-denitrification zone, 4-catalytic ozonation district, 5-BAF district, the 6-the second reflux pump, 7-ozonizer, 8-Venturi tube, the 9-the first reflux pump, 10-water outlet, 11-drain, 12-material taking mouth, 13-the first pipeline, the 14-the second pipeline, the 15-the three pipeline, 16-the first refluxing opening, the 17-the second refluxing opening, 18-water inlet.
Embodiment
Embodiment 1
As shown in Figure 1, Integral waste water treatment unit of the present invention comprises reactor, ozonizer 7, water tank 1, Venturi tube 8; Wherein, described reactor comprises denitrification zone 3, catalytic ozonation district 4 and BAF district 5 from bottom to up successively, and the bottom of described denitrification zone 3 is provided with water inlet 18, and top is provided with water outlet 10; The first refluxing opening 16 and the second refluxing opening 17 is provided with on the top of described reactor; Described water inlet 18 is connected with described water tank 1 by the first pipeline 13, is connected with described first refluxing opening 16 by the second pipeline 14;
Described ozonizer 7 is connected with described Venturi tube 8, and the water inlet of described Venturi tube 8 is connected by the 3rd pipeline 15 with described second refluxing opening 17, and the water outlet of described Venturi tube 8 is connected with the bottom in described catalytic ozonation district 4.
Described first pipeline 13 is provided with intake pump 2 and the first valve, described second pipeline 14 is provided with the first reflux pump 9 and the second valve, described 3rd pipeline 15 is provided with the second reflux pump 6 and the 3rd valve.
In described denitrification zone 3, the bottom in described catalytic ozonation district 4 and described BAF district 5 is provided with filtrate supporting layer and material taking mouth 12, and the bottom of described reactor is provided with drain 11; The volume ratio in described denitrification zone 3, described catalytic ozonation district 4 and described BAF district 5 is 1:1:4.
The filler in described denitrification zone 3 and described BAF district 5 is volcanics, particle diameter 2-5mm; The filler in described catalytic ozonation district 4 is carrying transition metal oxide compound, as Al
2o
3or the solid catalysis filler of CuO, particle diameter 2-5mm; The media-filling rate in described denitrification zone 3 and described catalytic ozonation district 4 is 85%, and the media-filling rate in described BAF district 5 is 80%.
Embodiment 2
Adopt Integral waste water treatment unit of the present invention to carry out the method for petrochemical industry secondary effluent process, comprise the steps:
Waste water in water tank 1 enters into reactor by intake pump 2, successively by denitrification zone 3, catalytic ozonation district 4 and BAF district 5, flow out from water outlet 10, simultaneously, there are two reflux lines, article one, realize backflow by the first refluxing opening 16, first reflux pump 9 and the second pipeline 14, Article 2 arrives Venturi tube 8 by the second refluxing opening 17, second reflux pump 6 and the 3rd pipeline 15, enter the bottom in described catalytic ozonation district 4 after the ozone that backflow waste water produces with ozonizer 7 in described Venturi tube 8 mixes, realize backflow.
Preferably, the quantity of reflux in described catalytic ozonation district 4 is 100%-200%, and the quantity of reflux of described denitrification zone 3 is 100%, and the residence time of described reactor is 3h, and the throwing amount of ozone is at 10mg/L.
Embodiment 3
The present embodiment is with certain typical petrochemical wastewater secondary effluent for handling object, and waste water quality index is as follows: COD between 60 ~ 120mg/L, BOD
5between 0.95 ~ 4mg/L, UV
254between 0.6 ~ 0.81/cm, NH
4 +-N concentration the content of below 2mg/L, TN be about 20mg/L, pH between 7 ~ 8, SS is between 20 ~ 27mg/L, and TP is between 1.0-1.5mg/L.Employing ozone dosage is 10mg/L, and ozone catalytic oxidation unit reflux ratio is 200%, and denitrification unit reflux ratio is 100%, and above-mentioned petrochemical wastewater is after this art breading, and effluent index COD is about 50mg/L, NH
4 +-N concentration is about 15mg/L at the content of below 0.5mg/L, TN.
Described denitrification zone and BAF district filler used is volcanics, and ozone catalytic oxidation unit catalyzed oxidation filler used is load Al
2o
3catalyst filling, waste water is 3h at the residence time HRT of whole technique.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (7)
1. an Integral waste water treatment unit, is characterized in that: comprise reactor, ozonizer (7), water tank (1), Venturi tube (8); Wherein, described reactor comprises denitrification zone (3), catalytic ozonation district (4) and BAF district (5) from bottom to up successively, the bottom of described denitrification zone (3) is provided with water inlet (18), and top is provided with water outlet (10); The first refluxing opening (16) and the second refluxing opening (17) is provided with on the top of described reactor; Described water inlet (18) is connected with described water tank (1) by the first pipeline (13), is connected with described first refluxing opening (16) by the second pipeline (14);
Described ozonizer (7) is connected with described Venturi tube (8), the water inlet of described Venturi tube (8) is connected by the 3rd pipeline (15) with described second refluxing opening (17), and the water outlet of described Venturi tube (8) is connected with the bottom of described catalytic ozonation district (4).
2. Integral waste water treatment unit according to claim 1, it is characterized in that: on described first pipeline (13), be provided with intake pump (2) and the first valve, described second pipeline (14) is provided with the first reflux pump (9) and the second valve, described 3rd pipeline (15) is provided with the second reflux pump (6) and the 3rd valve.
3. Integral waste water treatment unit according to claim 1, it is characterized in that: be provided with filtrate supporting layer and material taking mouth (12) in the bottom in described denitrification zone (3), described catalytic ozonation district (4) and described BAF district (5), be provided with drain (11) in the bottom of described reactor; The volume ratio in described denitrification zone (3), described catalytic ozonation district (4) and described BAF district (5) is 1:1:4.
4. Integral waste water treatment unit according to claim 3, is characterized in that: the filler in described denitrification zone (3) and described BAF district (5) is volcanics, particle diameter 2-5mm; The filler of described catalytic ozonation district (4) is carrying transition metal oxide compound, particle diameter 2-5mm; The media-filling rate in described denitrification zone (3) and described catalytic ozonation district (4) is 85%, and the media-filling rate of described BAF district (5) is 80%.
5. Integral waste water treatment unit according to claim 4, is characterized in that: described carrying transition metal oxide compound is Al
2o
3or the solid catalysis filler of CuO.
6. adopt the Integral waste water treatment unit in Claims 1 to 5 described in any one to carry out the method for petrochemical industry secondary effluent process, it is characterized in that: comprise the steps:
Waste water in water tank (1) enters into reactor by intake pump (2), successively by denitrification zone (3), catalytic ozonation district (4) and BAF district (5), flow out from water outlet (10), simultaneously, there are two reflux lines, article one, by the first refluxing opening (16), first reflux pump (9) and the second pipeline (14) realize backflow, Article 2 is by the second refluxing opening (17), second reflux pump (6) and the 3rd pipeline (15) arrive Venturi tube (8), the bottom of described catalytic ozonation district (4) is entered after the ozone that backflow waste water produces with ozonizer (7) in described Venturi tube (8) mixes, realize backflow.
7. the method for petrochemical industry secondary effluent according to claim 6 process, it is characterized in that: at handled petrochemical industry secondary effluent COD lower than 100mg/L, when TN is lower than 30mg/L, the quantity of reflux of described catalytic ozonation district (4) is 100%-200%, the quantity of reflux of described denitrification zone (3) is 100%, the residence time of described reactor is 3h, and the throwing amount of ozone is at 10mg/L.
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Cited By (6)
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|---|---|---|---|---|
| CN106830565A (en) * | 2017-03-30 | 2017-06-13 | 安徽华骐环保科技股份有限公司 | A kind of waste water advanced removal of carbon and nitrogen processing unit and its technique |
| CN107986425A (en) * | 2017-12-15 | 2018-05-04 | 江苏湖大化工科技有限公司 | A kind of sewage disposal ozone oxidation reaction device |
| CN108862847A (en) * | 2018-07-03 | 2018-11-23 | 北京清大国华环境股份有限公司 | A kind for the treatment of method and apparatus of industry phenol wastewater |
| CN110589955A (en) * | 2019-10-22 | 2019-12-20 | 安吉润风空气净化科技有限公司 | Integrated wastewater treatment device |
| CN112125476A (en) * | 2020-09-25 | 2020-12-25 | 中蓝连海设计研究院有限公司 | Two-stage ozone oxidation-biological contact coupling sewage advanced treatment method and device |
| CN113929270A (en) * | 2021-12-14 | 2022-01-14 | 杰瑞环境工程技术有限公司 | Sewage treatment device and self-cleaning method thereof |
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| KR100714825B1 (en) * | 2006-03-03 | 2007-05-04 | 신강하이텍(주) | Method for treating sewage and high organic loading wastewater by anaerobic/oxic process with membrane and biological aerated filter |
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| CN102887613A (en) * | 2012-10-29 | 2013-01-23 | 浙江中一检测研究院股份有限公司 | Treatment method for high-concentration industrial wastewater |
| CN103626360A (en) * | 2013-11-22 | 2014-03-12 | 华南理工大学 | Advanced treatment method of integrated catalytic ozonation-biological aerated filter water |
| CN104003578A (en) * | 2014-05-28 | 2014-08-27 | 中国环境科学研究院 | Method for treating industrial wastewater by combined two-stage ozone-biological aerated filter device |
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| CN112125476A (en) * | 2020-09-25 | 2020-12-25 | 中蓝连海设计研究院有限公司 | Two-stage ozone oxidation-biological contact coupling sewage advanced treatment method and device |
| CN113929270A (en) * | 2021-12-14 | 2022-01-14 | 杰瑞环境工程技术有限公司 | Sewage treatment device and self-cleaning method thereof |
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